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M&S

3pk Heatgen™ Maximum Warmth Thermal Socks

£16

Colour

Out of stock online

Customers say:

Fits true to size()
Size

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Free standard delivery over £60

Product code: T104466

About this style

Made for maximum warmth, these thermal socks feature innovative Heatgen™ technology that helps generate and retain heat during colder weather. The material includes added stretch for superb comfort, while the practical three-pack ensures you're well-stocked for the season. M&S Collection: Easy-to-wear wardrobe staples that combine classic and contemporary styles.

Maximum warmth for keeping cosy in colder climates.

Details & care

Style

Product Style: Thermal socks

Features

Heatgen™ technology

lightweight and supersoft, designed to keep you warm when the weather gets chilly

Composition

52% acrylic, 35% polypropylene, 6% polyamide, 6% polyester and 1% elastane

Care

Wash at 40°C

Do not bleach

Tumble dry medium temperature

Do not iron

Do not dry clean

Delivery, collection & returns

Delivery

Standard

UK Standard Delivery is available for £3.99 or free on orders over £60 (excluding furniture).

Nominated Day

UK Next Day Delivery and UK Nominated Day Delivery (excluding Northern Ireland) are available for £5.99 (excluding furniture)

Collection

Collect from store

Store collection is free on all fashion, home and beauty orders.

Returns

UK returns

Free

Exclusions apply

Full delivery and collection informationOur returns policy

Reviews (469)

4.6

62% Recommended this product

Mentions
26 October 2025retiredpa43
Verified Purchase

Great to keep my feet warm

Yes, I recommend this

Good thick socks to keep my feet warm and toasty through the winter

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 October 2025Scousegranny
Verified Purchase

Great for a man with cold feet!

My husband loves these cosy socks and we have since bought another pack! He has cold feet due to poor circulation.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 October 2025DavBru
Verified Purchase

Comfortable, warm and a good fit

Yes, I recommend this

They were very comfortable, very warm and a very good fit.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 October 2025Jolli315
Verified Purchase

Comfy and warm thermal socks

I originally bought these as a Christmas gift last year and as requested, I bought more as a birthday present for the same recipient. He says they are probably the warmest socks he’s had.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

19 October 2025Saf9
Verified Purchase

Winter socks

Yes, I recommend this

Thick socks for winter . Bought for my dad. Nice quality

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 October 2025Carolinamoon1030
Verified Purchase

Good warm socks

Yes, I recommend this

Cosy socks bought as a xmas present apoear to be good quality and true to size

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

10 October 2025Devon123
Verified Purchase

Nice thick socks

First time buyer for Heatgen socks. I'm sure they will be fab once it starts to get cold.

Helpful?

10 October 2025Ricsbits
Verified Purchase

Hard wearing socks

Yes, I recommend this

Great work socks, very warm, comfortable and soft under foot.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

07 October 2025AHigh
Verified Purchase

Birthday gift for whingeing hubby, worth the money

Yes, I recommend this

Bought these as a birthday gift for my aging husband whose feet are feeling the cold. Seems to be working for now as he has stopped complaining.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

06 October 2025Alistair248
Verified Purchase

Time will tell

Yes, I recommend this

The last pack were good last winter so well see how good these are this winter coming

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 October 2025vampiress
Verified Purchase

Husbands Cosy Feet

Yes, I recommend this

Bought for my husband , who hasn't worn them yet but is very happy with them.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

04 October 2025Susangrandparent
Verified Purchase

Winter warmers

Yes, I recommend this

My husband says these are a must during the cold weather. They are comfortable to wear & wash well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 September 2025Paul50
Verified Purchase

Nice and warm…

Yes, I recommend this

Ultra comfortable and cozily warm. Great fit without being too tight. I can honestly highly recommend this product!!

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 September 2025Cloe by
Verified Purchase

Hot feet

Yes, I recommend this

Bought for a Xmas present so not sure how warm they are.

Helpful?

09 April 2025Dellboy 53
Verified Purchase

Keeping Feet Warm

Yes, I recommend this

I purchased these socks from M&S a brand I can trust. I have tried them just once so far as I purchased them for next winter. They certainly kept my feet warm.

Reviewer Ratings

Quality

Excellent

Value for Money

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Good

How did it fit?

True to size

01 April 2025Jakspratt
Verified Purchase

Nice socks

Yes, I recommend this

Husband likes these, this was a repeat purchase. Warm and comfortable

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Average

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Average

How did it fit?

True to size

18 March 2025SassyMay23
Verified Purchase

Very warm

Yes, I recommend this

Warm and does the job of keeping feet warm in winter when wearing lighter shoes like trainers

Reviewer Ratings

Quality

Excellent

Value for Money

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Good

How did it fit?

True to size

11 March 2025Iluvsteak
Verified Purchase

Lasts

Yes, I recommend this

Very good and comfortable., worn these socks for years

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Average

How did it fit?

A bit large

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Average

How did it fit?

A bit large

08 March 2025HelenRox
Verified Purchase

Poor quality socks

No, I don't recommend this

One sock was torn,/ripped without pulling hard. Very surprised at the poor quality.

Reviewer Ratings

Quality

Poor

Value for Money

Poor

Style

Fair

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Poor

Value for Money

Poor

Style

Fair

How did it fit?

True to size

07 March 2025GlensPen
Verified Purchase

Genuinely work to keep feet much warmer. Bravo!

Yes, I recommend this

These are brilliant. Really effective at genuinely keeping feet much warmer than normal or even thick socks. Worth the money and ideal for Winter. Nice quality feel, soft. Quite long, so come up high on the leg - but who cares, as they work to keep feet toasty not frozen.

Reviewer Ratings

Value for Money

Excellent

Style

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Value for Money

Excellent

Style

Good

How did it fit?

True to size

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